Sometimes when boot the laptop with the default kernel it would hang at uevent detection, to prevent this from happening add kernel boot param nox2apic

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edit /etc/default/grub

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GRUB_CMDLINE_LINUX_DEFAULT="nox2apic"

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== Graphics ==

== Graphics ==

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Dell XPS 15z has two graphics card installed, Intel integrated graphics card and Nvidia 525m card. nvidia card is using Optimus technology. Initially, both the Intel integrated graphics and the Nvidia 525m card will be active, consuming a lot of power. Unfortunately, Optimus is currently not supported in Linux by nvidia driver nor nouveau driver, so you need to install the [[Intel|intel driver]] and disable nvidia card.

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Dell XPS 15z has two graphics card installed, Intel integrated graphics card and Nvidia 525m card. Nvidia card is using Optimus technology. Initially, both the Intel integrated graphics and the Nvidia 525m card will be active, consuming a lot of power. Unfortunately, Optimus is currently not supported in Linux by Nvidia driver nor nouveau driver, so you need to install the [[Intel|intel driver]] and disable Nvidia card.

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To install intel graphics driver, simply execute following:

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See [[Intel]] for details on using the Intel GPU.

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# pacman -S xf86-video-intel-sna

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===Disabling Nvidia card with acpi_call===

===Disabling Nvidia card with acpi_call===

Line 93:

Line 99:

===Using Bumblebee===

===Using Bumblebee===

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Another way, which allows to use Optimus technology is via [[Bumblebee]]. This program is available from AUR and even provides it's own drivres for Nvidia card, available from AUR as well.

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Another way, which allows to use Optimus technology is via [[Bumblebee]]. This program is available from AUR and even provides it's own drivers for Nvidia card, available from AUR as well.

=== Video Performance ===

=== Video Performance ===

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Using the Intel card without any modifications can result in poor video performance. A quick fix is to edit /boot/grub/menu.lst, and append the following to the kernel section:

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Using the Intel card without any modifications can result in poor video performance. A quick fix is to edit boot options of your [[Boot Loader|boot loader]] and append the following to the [[Kernel parameters|kernel parameters]]:

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kernel /boot/vmlinuz... '''i915.semaphores=1'''

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# i915.semaphores=1

===Boot time errors===

===Boot time errors===

Line 107:

Line 113:

=== X11: no screen found ===

=== X11: no screen found ===

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This error may happen when you install nvidia driver instead of intel driver. More info [[Nvidia#No_screens_found_on_a_laptop_.2F_NVIDIA_Optimus|here]]. Basic solution is to uninstall NVidia driver and install

System Setup

Hangs on boot

Sometimes when boot the laptop with the default kernel it would hang at uevent detection, to prevent this from happening add kernel boot param nox2apic
edit /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="nox2apic"

Graphics

Dell XPS 15z has two graphics card installed, Intel integrated graphics card and Nvidia 525m card. Nvidia card is using Optimus technology. Initially, both the Intel integrated graphics and the Nvidia 525m card will be active, consuming a lot of power. Unfortunately, Optimus is currently not supported in Linux by Nvidia driver nor nouveau driver, so you need to install the intel driver and disable Nvidia card.